.. _section-whats-new-710:

What's New in 7.1.0
===================

Improved startup by reducing discovery traffic
----------------------------------------------
.. ADMINCONSOLE-512

|AC| will now only create local endpoints (DataWriters and DataReaders) 
for specific features if and when it discovers corresponding opposite
endpoints in the DDS domain. For example, when |AC| starts, it will not
create local endpoints for Distributed Logger unless and until it finds
corresponding endpoints for Distributed Logger running in that domain.

Previously, |AC| created local endpoints for features such as
Distributed Logger before knowing if they were needed. These extra
endpoints caused unnecessary Discovery traffic in some cases. Now
|AC| will start with zero DataWriters and DataReaders, thus creating as
little Discovery traffic as possible, while still supporting all of
the existing features.

Ability to publish samples
--------------------------
.. ADMINCONSOLE-562

Now you can use |AC| to *publish* data samples.  To do so, you will
select a |TOPIC| that you want to publish samples of, and its QoS. To create the
|PUB| and |DW| for sending the sample, |AC| needs the |TOPIC|'s
type-code definition; if |AC| hasn’t already discovered it, 
you will be prompted to provide this information.

Once |AC| has created the |PUB| and |DW| for your selected |TOPIC|,
you can fill in the sample’s content using Python code within
|AC|. This sample can be cached and/or sent to available |DRs|.


Distributed Logger 'message' topic now visible from custom implementations
--------------------------------------------------------------------------
.. ADMINCONSOLE-1013

Previous versions of |AC| checked that the Distributed Logger 'message' 
topic (``rti/distlog``) was being published from the Connext Core Library
version 5.1 or newer, otherwise the messages would not be shown. 
This was originally done to prevent incompatibilities that could have 
happened with custom implementations prior to 5.1. However, it also meant
that customers who wanted to publish this topic from a Connext Micro version
did not see their messages in |AC|. This restriction has been removed.


Security information and match analysis updates
-----------------------------------------------
.. ADMINCONSOLE-1078

Security attributes are now visible in |AC|. This information 
is now exposed through the builtin topics, so it can now 
be visualized in |AC|. In addition, |AC| will now perform a
security match analysis with this same information. 

For details on how the security attributes are matched, see 
:ref:`section-administration-view-match-analyses`.

Support for Dynamic Certificate Expiration and Pre-Shared Key Protection
------------------------------------------------------------------------
.. ADMINCONSOLE-951

|AC| will now show a dialog when a certificate in use is about to expire.
Three new fields were added to the security preferences page to allow
``editing key_revision_max_history_depth``, ``rtps_protection_preshared_key``, 
and ``certificate_expiration_advance_notice_duration properties``.

For more information on these new properties, see 
:link_connext_dds_secure_um:`Properties for Configuring Authentication
<p2_core/authentication.html#properties-for-configuring-authentication>` in the
|SP_UM|.


New Platforms
-------------

This release adds support for Red Hat® Enterprise Linux 9 systems on x64 CPUs.
See :link_connext_dds_pro_whats_new:`RTI Connext What's New in 7.1.0 <>`.

Use of JEP Third-Party Software
-------------------------------

|AC| now uses JEP 4.1.0. 

Third-Party Software Upgrades
-----------------------------
.. THIRDPARTY-54

The following third-party software used by |AC| has been upgraded:

.. list-table:: Third-Party Software Changes
    :name: ThirdPartyChanges710
    :widths: 40 40 40
    :header-rows: 1

    * - Third-Party Software
      - Previous Version
      - Current Version 
    * - XStream
      - 1.4.19
      - 1.4.20
    
For information on third-party software used by *Connext* products, see the 
"3rdPartySoftware" documents in your installation:  
**<NDDSHOME>/doc/manuals/connext_dds_professional/release_notes_3rdparty**.